Transparent screen.



No. 830,398. PATENTBD SEPT. 4,1900. J. 0, Woon.

TRANSPARENT SCREEN. APPLIoATIoN FILED MAR.12,1906.

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, N @www rgg/z C ZLoVoE 21.08 @ggg/fw @62M UNrrED STATES PA'riaN'r,OFFrOEg JOHN OREWE WOOD, OF Swinnen, ENGLAND.'- TRANSPARENT sonal-zw.,

To all whom it may concern:I p

Be it known that I, J OH'N Cnnwn WOOD, solicitor, a subject'of the Kingof Great Brit-v ain, residin at 53 Bath road, Swindon, in the county ofilts, England, have invented certain new and useful Improvements inTransparent Screens, of which the following is a specification. l

My invention relates to improvements in transparent screens and Windowsfor motorcars and other vehicles, and has for its object the preventionof injur Ato the occupants of such cars and vehicles t ough pieces ofglass strikingthem if b accident such screens or windows should' ebroken, the pieces of broken glass in my invention adherlng to thescreen and not becoming detached.

It also has the following advantages over celluloid screens or. Win oWs:It obviates the dan fer caused by the same catching re. Celluloi screenssoon become scratched and rendered less trans arent; My inventionprevents this. and are apt to warp and thereby distort the vision.

To the above end my invention consists in providing two sheets of glassbetween which is xed or cemented a sheet or lm of any transparentadhesive substance or material with suflicient elasticity to preventsplintering when broken and provide an agglutination or hanging togetherof the artsg For example, I employ a sheet of ce lulohbetween two sheetsof glass or a iilm of a substance such as gelatin or other transparentsubstance less brittle than glass and not liable to splinter.

In carrying my invention into effect I pro-v vide, for example, twosheets of glass, and I fix these by means of a suitable cement, such asCanada balsam, to a central sheet of ltransparent celluloidorother-similar material having the requisite strength and transarencyand sufficiently adhesive-ie., capa-` ble of being made to adhere to theexterior sheets f glass. 'In this way I provide`a transpent combinationof materials or sandwich of suflicient rigidity, in which the exteriorlayers of glass rovide a hard non-inflammable surface, rea ilycleanedand not liable to-lose its transparency by scratching or loss of olishand in which the inner layer firmly ladheres to and supports theexterior layers, so as to reduce their liability to become cracked andprevent portions from i Specification of Letters Patent. Applicatie manumh 12,1906. sumiso. 805,656'.

Cellu oid screens are not rigid 1 Patented sept.`4,19oe.

breakingaway or splintering even should crackin occur'.

The fllowing is an'example'of a method of constructing a screenaccording to this invention, reference bein had to the accompanyingdrawings, in w 'chf Figure 1 shows iii-sectional elevation and brokenperspective the combination according to this invention of two exteriorsheets of glass with an interior sheet of transparent celluloid or thelike attached to said exterior sheets by a transparent cement, and Fig.2 shows .in erspective view a tra and hotwater tanlk suitable for use anin which the sheets of glass and celluloid may be cemented together.

With reference to the' drawings, a and b designate the'two exteriorsheets of glass, and

4c denotes thel interior sheet of celluloid.

These exterior glass sheets a and b are cemented by a layer of Canadabalsam in sandwich form on either side of the interior sheet ofcelluloid, and the combined sheets are then employed in the constructionof glass screens,

windows, and the like for motor-oars andv other vehicles.

' d designates a vtray or bath of about one inch or suitable depth,which I partly lill withli uid'Canada balsam. This tray d is adapted tot and rest on a shallow tankfe,

which tank I fill with hot water for the purpose of heating and therebyreducing the consistency or density of the Canada balsam in the tray dand making it thinner as a liquid. I then take a sheet of plate-glass b,(see Fig. 1,) which I have previouslywarmed, and place it in the tray d,submerged in the Canada balsam. I then take a rather larger sheet oftransparent clear celluloid c (see Fig. 1) and place it in the tray dover the glass sheet b, submerged in the Canada balsam, takin care thatno air remains between the .glass s eet b and the celluloid sheet c; Ithen take another sheet of lateglass a, having previously warmed tliesame, and* place one edge of such sheet on the celluloid sheet c so thatit rests over the corresponding edge of the first sheet of glass b. Ithen lower the second sheet of glass a gradually into-the tray dandsubmerge it in the Canada balsam, so that no air remains between itand the celluloid sheet c. The two sheets of glass a and b with thecelluloid sheet c are then slightly pressed together in the tray d. Ithen take the combined sheets of glass and celluloide,

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7, and c out of the tray d and I out olf the without departing from thescope of this in edge of the eelluleid close to the glass. I mount thecombined glass and. Celluloid sheets in any suitable way-or example, ina frame-placing a rubber packing round the glass Where in contact withthe frame. The glass is fixed inthe frame by an :inner frame, which isscrewed down upon it in sueh a way as to have a clamped effect, so as toprevent the sheets of glass and eelluloid by any means separating, andthe face-surfaees of thesvreen or window are then cleaned;

'lhe inner layer may be of any material providing the re uisite degreeof transpareney and strengt and capable of adhering (either of its ownnature yor through the interposition of a suitable cement) totheexterior layers of fflass.

It Will be understood that my improved screen may be used for otheranalogous purposs when a sufficiently ri""d transparent yscreen isrequired capable o resisting frac# ture and not liable to splinteror'break up vention.

What I claim as my invention, and desire' to secure b v .Letters Patent,is-

1. An article of manufacture, composed of exterior transparent sheets ofmaterial, an intermediate flexible transparent substance, and a tra.'parent medium interposed between the several sheets for rigidlyconnecting the same.

2. A transparent screen composed of two exterior sheets of glass, aninterior transparent sheet of Celluloid, and a transparent cement forattaching th(` exterior sheets of glass to the interior sheet ofCelluloid. A

In testimony whereof 1 havehereunto set my hand in presence of twosubscribing witnesses.

JOHN @REWE Woon.

Witnesses:

RICHARD JAMES,

CHARLES SonAEFER RU'rLIDGE.

